Batch Tools Questions

I looked at both the Batch help page, and the EJ Rawr.Mage discussion, and didn't see answers to these.

Is the "Weight" column in "Batch Tools" an absolute weight, or a relative weight?

Example: My Druid's Rawr.Moonkin score is around 8k. His Rawr.Tree score is around 16k. I've got this new helm, and I need to decide if I will gem it for Moonkin or for Tree. Let's say I'd value a 1% increase in Moonkin (score +80) as being
equal to a 1% increase Tree (score +160). Should the weights be equal (1% == 1%), or should the Moonkin weight be twice the tree weight (2*80 = 1*160)?

I suspect an absolute weight, since it is easier to formulize (overall optimization is dot product of weights and scores), but it wasn't obvious from the documentation.

Separate question: Am I correct that for all of the various Optimize/Upgrade options under Batch Tools/Tools that it will

1) Use available gear/gemmings/enchants/filter based on the currently loaded character (Rawr main window)?

2) Use talents/fight options/model settings/model based on the character on each line of the Batch Tools grid?

So that if I want Tree to consider using Ember Skyflare Diamond, it needs to be in the main-window gemming template, and it doesn't matter whether or not it is in the ErdTreeRaidHeal.xml (which is not main window, just one of the Batch entries).

1) Basic optimize/upgrade will use availability of each character when optimizing that particular character. Batch/progressive version use availability of the first character in the batch list for the whole set.